Next Article in Journal
Potential Cycling Effects on Activities of Nickel-Mediated Benzyl Alcohol and Glycine Electrooxidation in Alkaline Solutions
Next Article in Special Issue
Enhanced Photodegradation of Synthetic Dyes Mediated by Ag3PO4-Based Semiconductors under Visible Light Irradiation
Previous Article in Journal
Photodegradation of Gas Phase Benzene by SnO2 Nanoparticles by Direct Hole Oxidation Mechanism
Previous Article in Special Issue
Surface-Doped Graphitic Carbon Nitride Catalyzed Photooxidation of Olefins and Dienes: Chemical Evidence for Electron Transfer and Singlet Oxygen Mechanisms
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Catalysts
Volume 10
Issue 1
10.3390/catal10010118
catalysts-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Characterization and Comparative Performance of TiO2 Photocatalysts on 6-Mercaptopurine Degradation by Solar Heterogeneous Photocatalysis

by
Luis A. González-Burciaga
1,
Cynthia M. Núñez-Núñez
2,
Miriam M. Morones-Esquivel
3,
Manuel Avila-Santos
4,
Adela Lemus-Santana
4 and
José B. Proal-Nájera
1,*
1
Instituto Politécnico Nacional, CIIDIR-Unidad Durango, Calle Sigma 119, Fracc. 20 de Noviembre II, Durango 34220, Mexico
2
Universidad Politécnica de Durango, Carretera Durango-México km 9.5, Col. Dolores Hidalgo, Durango 34300, Mexico
3
Facultad de Ciencias Forestales, Universidad Juárez del Estado de Durango, Río Papaloapan, Col. Valle del Sur, Durango 34120, Mexico
4
Instituto Politécnico Nacional, CICATA-Unidad Legaria, Calzada Legaria 694, Delegación Miguel Hidalgo, Ciudad de México 11500, Mexico
*
Author to whom correspondence should be addressed.
Catalysts 2020, 10(1), 118; https://doi.org/10.3390/catal10010118
Submission received: 20 December 2019 / Revised: 1 January 2020 / Accepted: 7 January 2020 / Published: 14 January 2020
(This article belongs to the Special Issue Understanding the Molecular Mechanisms of Photocatalysis)
Browse Figures
Versions Notes

Abstract

The crystallographic properties of two titanium dioxide (TiO2) photocatalysts, P25, and commercial C1-TiO2 reactive grade, were analyzed by X-ray diffraction (XRD) and the band-gap was calculated with UV–Vis spectrometry with integration sphere. Then, their performance was tested in the degradation of 6-mercaptopurine (6-MP) by heterogeneous photocatalysis with solar radiation under different pH conditions and the addition of hydrogen peroxide (H2O2); the degradation efficiency was monitored by UV–Vis spectrophotometry. The XRD analysis showed that both photocatalysts studied have anatase phase, while only P25 contains rutile; the band gap values were lower, in both catalysts, than those reported for catalysts obtained by the sol-gel method. With both photocatalysts, degradation experiments showed efficiency greater than 98% in experiments in the presence of H2O2 regardless of pH. The properties of the photocatalysts, along with the data obtained from the experimentation, helped determine the best semiconductor for the degradation of 6-MP with these operating conditions in this work.
Keywords: kinetics; radiation; anatase; rutile; band-gap; titanium dioxide kinetics; radiation; anatase; rutile; band-gap; titanium dioxide

Share and Cite

MDPI and ACS Style

González-Burciaga, L.A.; Núñez-Núñez, C.M.; Morones-Esquivel, M.M.; Avila-Santos, M.; Lemus-Santana, A.; Proal-Nájera, J.B. Characterization and Comparative Performance of TiO2 Photocatalysts on 6-Mercaptopurine Degradation by Solar Heterogeneous Photocatalysis. Catalysts 2020, 10, 118. https://doi.org/10.3390/catal10010118

AMA Style

González-Burciaga LA, Núñez-Núñez CM, Morones-Esquivel MM, Avila-Santos M, Lemus-Santana A, Proal-Nájera JB. Characterization and Comparative Performance of TiO2 Photocatalysts on 6-Mercaptopurine Degradation by Solar Heterogeneous Photocatalysis. Catalysts. 2020; 10(1):118. https://doi.org/10.3390/catal10010118

Chicago/Turabian Style

González-Burciaga, Luis A., Cynthia M. Núñez-Núñez, Miriam M. Morones-Esquivel, Manuel Avila-Santos, Adela Lemus-Santana, and José B. Proal-Nájera. 2020. "Characterization and Comparative Performance of TiO2 Photocatalysts on 6-Mercaptopurine Degradation by Solar Heterogeneous Photocatalysis" Catalysts 10, no. 1: 118. https://doi.org/10.3390/catal10010118

APA Style

González-Burciaga, L. A., Núñez-Núñez, C. M., Morones-Esquivel, M. M., Avila-Santos, M., Lemus-Santana, A., & Proal-Nájera, J. B. (2020). Characterization and Comparative Performance of TiO2 Photocatalysts on 6-Mercaptopurine Degradation by Solar Heterogeneous Photocatalysis. Catalysts, 10(1), 118. https://doi.org/10.3390/catal10010118

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop